<template>
  <div class="upload-container">
    <el-button :style="{background:color,borderColor:color}" icon="el-icon-upload" size="mini" type="primary" @click=" dialogVisible=true">上传图片
    </el-button>
    <el-dialog :visible.sync="dialogVisible" append-to-body>
      <el-upload
        :multiple="true"
        :file-list="fileList"
        :show-file-list="true"
        :http-request="myUpload"
        :on-remove="handleRemove"
        :before-upload="beforeUpload"
        class="editor-slide-upload"
        action=""
        list-type="picture-card">
        <el-button size="small" type="primary">点击上传</el-button>
      </el-upload>
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="handleSubmit">确 定</el-button>
    </el-dialog>
  </div>
</template>

<script>
import { getToken } from '@/utils/auth'
import axios from 'axios'
const baseUrl = process.env.BASE_API
export default {
  name: 'EditorSlideUpload',
  props: {
    color: {
      type: String,
      default: '#1890ff'
    }
  },
  data() {
    return {
      dialogVisible: false,
      listObj: {},
      fileList: []
    }
  },
  methods: {
    myUpload(content) {
      const token = getToken()
      const config = {
        headers: {
          'Content-Type': 'multipart/form-data',
          'Authorization': token,
          'login-type': 'sweb'
        }
      }
      const formData = new FormData()
      formData.append('file', content.file)
      formData.append('type', 'SW1803')
      formData.append('id', 0)

      axios.post(baseUrl + '/api-web/file/upload', formData, config).then((res) => {
        // 做处理
        if (res.data.code === '100000') {
          const uid = content.file.uid
          console.log(uid)
          const objKeyArr = Object.keys(this.listObj)
          console.log(objKeyArr)
          for (let i = 0, len = objKeyArr.length; i < len; i++) {
            if (this.listObj[objKeyArr[i]].uid === uid) {
              this.fileList.push({ url: res.data.data.url })
              this.listObj[objKeyArr[i]].url = res.data.data.url
              this.listObj[objKeyArr[i]].hasSuccess = true
              return
            }
          }
        }
      }).catch((error) => {
        console.log(error)
      })
    },
    checkAllSuccess() {
      return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess)
    },
    handleSubmit() {
      const arr = Object.keys(this.listObj).map(v => this.listObj[v])
      if (!this.checkAllSuccess()) {
        this.$message('请等待所有图片上传成功 或 出现了网络问题，请刷新页面重新上传！')
        return
      }
      this.$emit('successCBK', arr)
      this.listObj = {}
      this.fileList = []
      this.dialogVisible = false
    },
    handleRemove(file) {
      const uid = file.uid
      const objKeyArr = Object.keys(this.listObj)
      for (let i = 0, len = objKeyArr.length; i < len; i++) {
        if (this.listObj[objKeyArr[i]].uid === uid) {
          delete this.listObj[objKeyArr[i]]
          return
        }
      }
    },
    beforeUpload(file) {
      const _self = this
      const _URL = window.URL || window.webkitURL
      const fileName = file.uid
      this.listObj[fileName] = {}
      return new Promise((resolve, reject) => {
        const img = new Image()
        img.src = _URL.createObjectURL(file)
        img.onload = function() {
          _self.listObj[fileName] = { hasSuccess: false, uid: file.uid, width: this.width, height: this.height }
        }
        resolve(true)
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
.editor-slide-upload {
  margin-bottom: 20px;
  /deep/ .el-upload--picture-card {
    width: 22%;
  }
}
</style>
